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Keyword [pre-splitting blasting]
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21. Improve The Fully Mechanized Gaving Working Face Initial Mining Of Coal Recovery Rate Of Pre-splitting Blasting Method And Its Effect Analysis
22. Study On Permeability Improvement And Gas Extraction Technology Of Deep Hole Pre-splitting Blasting In11-2Coal Of Panyidong Coal Mine
23. Numerical Simulation Of Pre-splitting Blasting Crack Propagation Law In Low Permeability Coal Seams
24. The Study On Permeability Increasing Experiments And Techniques By Deep Hole Pre-splitting Blasting With Powder-emulsionin Explosive In Low Permeability Coal Seam
25. Production Experimental Study On Non-coupling Charge Of Pre-Splitting Blasting In The Dagushan Iron Mine
26. Shandong Huaheng Mining Group,41305 Working Face Of Deep Hole Pre-splitting Blasting Weakening Thick Coal Seam Similar Simulation Experiment Research
27. Research On Shaft Uncovering Coal Outburst Prevention By Deep Hole Pre-splitting Blasting Grouting Technique
28. Study On Mechanism Of Pre-splitting Blasting Of Roof For Gob-side Entry Retaining
29. Research On Gas Control Technology Of Drivage Roadway In High Adsorption And Low Permeability Coal Seam
30. Deep Hole Pre-splitting Blasting Improved Anti-reflection Extraction Technology Research Of 25091 Auxiliary Under Lane(North) In GaoCheng Coal Mine
31. Experimental Study On The Effect Of New Charge Structure On Pre-cracking Blasting Effect
32. Application Of Deep Hole Presplitting Blasting Technology In Treatment Of Thick Sandstone Roof In Coal Mine
33. Experimental Study On The Effect Of Pre-splitting Blasting Of Water Medium
34. Study On Numerical Simulation Of Deep Penetration Pre-splitting Blasting For Low Permeability Coal Seam
35. Study On Permeability Improvement And Release Of Pressure Technology Of Deep Hole Pre-splitting Blasting In C1201 Working Face Of ChiYu Coal Mine
36. Research On Hard Roof Pre-splitting Blasting Control Technlogy Of 4307 Working Face Of Chang Ping Coal Mine
37. Study On Increasing Permeability Technique By Carbon Dioxide Pre-splitting Blasting In Wang Jialing Coal Mine
38. Research And Application Of Horizontal Deep Hole Advanced Pre-splitting Blasting Technology For Hard Rock Wall Inside Fully Mechanized Mining Face
39. Study On Deep Hole Blasting And Mine Pressure Characteristics Of Thick And Hard Sandstone Roof
40. Study On Strata Behavious Characteristic And Control Technology Of Hard Roof In Ba Coal Mine
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